Air-heating attachment for stoves.



. SMITH.l l Am HEATING ATTACHMENT TOR sTovEs.

TATBNTED AUG. 4, 1190's,

APPLICATION I'LBD FER 0, im

v r T? 4 i., l T n.. A a

1 GEORGE w. SMITH, OF'MARQUETTE, nrcHIGAN, AssIGNoR or vora-HALE 'ro rREDEnicKn. f ,Y l rEEsoHER, or nanounr'rnincnreax. l p

` No. scopes.

i mAHEA'rING ATTACHMENT vnon s'rovns To all whom 'it concern:

Be it known that I, GEORGE citizen of the United States, residing at Mar-4 quette, in the county of Marquette and State of Michigan, have invented certain new and useful Improvements in Air-Heating Attachments for Stoves; and I do declare the following to be arfull, clear, and exact descri tion of the invention, such as will enab e others skilled in the art .to which it appertains to make and use the same.

This invention relates to improvements in air heating attachments for stoves.

The object of the invention is to provide an attachment of this character adapted to be connected to a stove or stove-pipe whereby the products of combustion may be utilized to increasethe heating capacity of the stove. A

With this and other objects in view, the invention consists of certain novel features of construction, combination and arrangement' of arts, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a side view of a portion of a stove showing the application of the attachment thereto, Fig. 42 1s-an enlarged vertical sectional view through the attachment, and Fig. 3 is a horizontal sectional view of the same.

In the present embodiment of the invention the same is shown as beinlg ap lied toa stove-pipe and consists of a ho ow body p01"- tion or drum 1, which is preferably cylindrical in form and constructed of sheet metal. The bottom 2 of the drum is provided with a collar 3, which is adapted to be engaged with the elbow 4, which connects with the stove. The collar 3 is arranged in the bottom 2 adjacent to one side of the cylinder and in the top 5, of the drum ad'acent to itsopposite side is arranged a. collar 6, which is adapted to' be connected with the upper portion of the stove-pipe 7, which extends to the chimney 3.

Within the drum 1 are arranged upper and lower baflie lates 8, the lower one of\said plates exten ing over the front side ofthe drum to near the rear side thereof, thus forming a partition which closes the lower portion of the drum at all points except a small space between the rear edge of the Specification of Letters Patent. l Application led February 6, 1908. SerialNo. 414,642. Y

plate and the adjacent rearwall of the drum.

same to near the forward side thereof and forms a partition which nearly closes the drum above the lower plate, said bafile plates causing the products of combustion whichenter the lower end of the drum to pass through the latter in a zigzag manner, said products first passing over the lower side of the drum to the rear side thereof, thence forwardly between the rear edge of the lower baffle plate and the adjacent rear wall of the drum, and thence forward across the drum between the baille plates, thence u wardly between the forward edge of the p ate and the adjacentfront side of the drum, after which said roducts pass rearwardly over the upper p ate and out through the stevepipe connection at the rear portion at the top ot the drum.

Arranged on the drum to pass through the same is an air conducting ipe 9, the lower end offwhich rests on the oor, and is provided with an annular series of air inlet passages 10. The pipe 9 is preferably formed in three sections, the lower section 11 an upper section 12, and an intermediate section 13. The intermediate section 13 is preferably in the form of an oblong box or chamber, which is arranged in the drum midway between the baflieplates 8, as shown, to the lower side of the section 13. Adjacent to its rear end is connected the upper portion of the lower section 11 of the pipe, while to the upper side of the section 13 adjacent to its forward end is connected the lower end of the up er section 12 of the pipe. The up er en of the section 12 opens Athrough an is secured to UNITED. STATES rar-EnrA oEErcE. A-

Patented Aug. la., 190s.l

The upper bathe plate S is secured* to the rear side of the drum and extends across the i the top of the drum, as shown. The pi e 9 thus forms a flue through which the col air from the lower portion of the room passes after entering t-he passages 10, said air being heated in passing through the flue 9 by the heat from theproducts of combustion, which enter the drum from the stove and are caused to circulate around the pipe or flue 9, by means of the battle plates 8.

By providing an air heating attachment as herein shown and described the heat from y the products of combustion which ordinarily passes out through the stove ipe .to the utilized to assist in eating the chimney 1s lair in the apartment or room, thereby providing for a saving of fuel.

-to and opens through the upper end of the l'thus described my invention what I claim as new and desire to secure` by. Let.-

' seg'govs' drum, upper and lower baflle plates arranged above and below said chamber to form passages at the opposite ends of the same, thereby providing a circuitous course through the drum, and a smoke pi e connection arranged on each end of the rum, said connections being adjacent to the opposite sides of the drum, substantially as described.

vIn testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.`

Y GEORGE W. SMITH.

Witnesses: I

FRIEDRICH R. PRESGHER,

Sam.. E. BYRNE. 

